我想知道服务器接受什么类型的内容，我是否只能以那种格式发布数据？
更新： 下面是代码。
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLSession;
public class ExcelReader {
@SuppressWarnings("unchecked")
public static void main(String[] args) throws Exception {
//
// An excel file name. You can create a file name with a full
// path information.
//
String filename = "E:\\Registration Details.xlsx";
//
// Create an ArrayList to store the data read from excel sheet.
//
List sheetData = new ArrayList();
FileInputStream fis = null;
try {
//
// Create a FileInputStream that will be use to read the
// excel file.
//
fis = new FileInputStream(filename);
//
// Create an excel workbook from the file system.
//
XSSFWorkbook workbook = new XSSFWorkbook(fis);
//
// Get the first sheet on the workbook.
//
XSSFSheet sheet = workbook.getSheetAt(0);
//
// When we have a sheet object in hand we can iterator on
// each sheet's rows and on each row's cells. We store the
// data read on an ArrayList so that we can printed the
// content of the excel to the console.
//
Iterator rows = sheet.rowIterator();
while (rows.hasNext()) {
XSSFRow row = (XSSFRow) rows.next();
Iterator cells = row.cellIterator();
List data = new ArrayList();
while (cells.hasNext()) {
XSSFCell cell = (XSSFCell) cells.next();
data.add(cell);
}
sheetData.add(data);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
if (fis != null) {
fis.close();
}
}
showExcelData(sheetData);
}
private static void showExcelData(List sheetData) {
//
// Iterates the data and print it out to the console.
//
ArrayList xlsDataList = new ArrayList();
for (int i = 0; i < sheetData.size(); i++) {
List list = (List) sheetData.get(i);
for (int j = 0; j < list.size(); j++) {
XSSFCell cell = (XSSFCell) list.get(j);
if(cell.getCellType()==cell.CELL_TYPE_STRING){
xlsDataList.add(cell.getRichStringCellValue().getString());
// System.out.print(
// cell.getRichStringCellValue().getString());
}else if(cell.getCellType()==cell.CELL_TYPE_NUMERIC){
xlsDataList.add(cell.getNumericCellValue());
//System.out.print(
// cell.getNumericCellValue());
}
if (j < list.size() - 1) {
// System.out.print(", ");
}
}
// System.out.println("");
}
if(null!=xlsDataList && xlsDataList.size()>0){
authenticatenewPostUrl(xlsDataList);
}
for(int i=0;i<xlsDataList.size();i++){
System.out.println(xlsDataList.get(i));
}
}
public static void authenticatenewPostUrl(ArrayList xlsDataList) {
HostnameVerifier hv = new HostnameVerifier() {
@Override
public boolean verify(String urlHostName, SSLSession session) {
System.out.println("Warning: URL Host: " + urlHostName
+ " vs. " + session.getPeerHost());
return true;
}
};
// Now you are telling the JRE to trust any https server.
// If you know the URL that you are connecting to then this should
// not be a problem
try {
trustAllHttpsCertificates();
} catch (Exception e) {
System.out.println("Trustall" + e.getStackTrace());
}
HttpsURLConnection.setDefaultHostnameVerifier(hv);
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
try {
URL url = new URL("https://www.walmart.com/cservice/ya_index.gsp");
String line;
StringBuilder string=new StringBuilder();
HttpsURLConnection ucc = (HttpsURLConnection) url.openConnection();
InputStream content = (InputStream) ucc.getInputStream();
BufferedReader in = new BufferedReader(new InputStreamReader(content));
while ((line = in.readLine()) != null) {
string.append(line);
}
Document document=Jsoup.parse(string.toString());
Elements elements=document.getElementsByTag("a");//("mainSpriteSliderBTN wmBTN_blue25 continue");
int count=0;
//String registrationURL="";
String herfURL="";
for(Element elem:elements)
{
Elements e=elem.getElementsByAttributeValueMatching("class", "mainSpriteSliderBTN wmBTN_blue25 continue");
if(e!=null && !e.toString().isEmpty())
{
System.out.println(e.get(0).toString()+"\n"+count++);
Element myElem=e.get(0);
System.out.println(myElem.attr("href"));
herfURL=myElem.attr("href");
}
}
URL registrationURL = new URL("https://www.walmart.com"+herfURL);
//String credentials = "ptt" + ":" + "ptt123";
String postData = "firstName="+xlsDataList.get(0)+"&lastName="+xlsDataList.get(1)+"&userName="+xlsDataList.get(2)+"&userNameConfirm="+xlsDataList.get(3)+"&pwd="+xlsDataList.get(5)+"&pwdConfirm="+xlsDataList.get(6);
// String encoding = Base64Converter.encode(credentials.getBytes("UTF-8"));
HttpsURLConnection uc = (HttpsURLConnection) registrationURL.openConnection();
uc.setDoInput(true);
uc.setDoOutput(true);
// uc.setRequestProperty("Authorization", String.format("Basic %s", encoding));
uc.setRequestMethod("POST");
uc.setRequestProperty("Accept", "*/*");
uc.setRequestProperty("Content-Length", Integer.toString(postData.getBytes().length));
uc.setRequestProperty("Content-Type", "text/html; charset=utf-8");
OutputStreamWriter outputWriter = new OutputStreamWriter(uc.getOutputStream());
outputWriter.write(postData);
outputWriter.flush();
outputWriter.close();
System.out.println(uc.getResponseCode()+":::"+uc.getResponseMessage());
} catch (MalformedURLException e) {
e.printStackTrace();
pw.println("Invalid URL");
} catch (IOException e) {
e.printStackTrace();
pw.println("Error reading URL");
} catch (Exception e) {
e.printStackTrace();
}
System.out.println(sw.toString());
}
public static class TempTrustedManager implements
javax.net.ssl.TrustManager, javax.net.ssl.X509TrustManager {
public java.security.cert.X509Certificate[] getAcceptedIssuers() {
return null;
}
public boolean isServerTrusted(
java.security.cert.X509Certificate[] certs) {
return true;
}
public boolean isClientTrusted(
java.security.cert.X509Certificate[] certs) {
return true;
}
public void checkServerTrusted(
java.security.cert.X509Certificate[] certs, String authType)
throws java.security.cert.CertificateException {
return;
}
public void checkClientTrusted(
java.security.cert.X509Certificate[] certs, String authType)
throws java.security.cert.CertificateException {
return;
}
}
private static void trustAllHttpsCertificates() throws Exception {
// Create a trust manager that does not validate certificate chains:
javax.net.ssl.TrustManager[] trustAllCerts =
new javax.net.ssl.TrustManager[1];
javax.net.ssl.TrustManager tm = new TempTrustedManager();
trustAllCerts[0] = tm;
javax.net.ssl.SSLContext sc =
javax.net.ssl.SSLContext.getInstance("SSL");
sc.init(null, trustAllCerts, null);
javax.net.ssl.HttpsURLConnection.setDefaultSSLSocketFactory(
sc.getSocketFactory());
}
}
我认为数据已发布到上面的 url，但是当我打印响应代码和响应消息时，我得到了500:::Internal Server Error
当我检查此链接内部服务器错误 500
我知道我们已经将数据发送到服务器，即仅接受类型。
如果不是，请纠正我，我该如何解决上述问题。